I'm the member of the my group band. I want to buy a musical PC. Can you give me some tips to buy musical PC?
Any body here ?

There are a couple of ways to go, but there are some basics.
First of all make sure that your PC supports Hi Def audio. Next make sure that you buy a VERY good PC speaker setup(I use an excellent Altec Lansing PC speakersetup, but good quality PC speaker setups are not cheap) with sufficient power and a good subwoofer. Then if you want to go to the next level you can do what I did. When I built my PC I bought a motherboard that supports a Digital Audio Output, such as TOSLINKor COAXIAL. Next I linked my PC to my AV Receiver which supports multi zone output. I also use iTunes, but ALL of my music is loaded using Apple Lossless Audio directly from my CD collection. By doing it this way you are keeping the audio signal digital and using the AV Receivers Digital to Analog Converter. By choosing different zones I can send the music to my outdoor speakers, to my 7.1 surround speaker system, or to my secondary Home Theater setup in the bedroom again using the digital output on my primary Home Theater Receiver to the digital input of the second receiver. Either way that you go the sound quality should be amazing. Remember, the quality if the sound is directly related to the quality if the components. If you have any questions post them and I will try and answer.
Good Luck and Good Listening.